neutron/fix-newline-chars-in-dhcp-extra-options-bf86d30371556d63.yaml at 2ae623b2b4c8b7868f45619ba1a5da92f95968c0 - neutron - OpenDev: Free Software Needs Free Tools

openstack/neutron

Slawek Kaplonski df891f0593 Remove dhcp_extra_opt value after first newline character

Passing newline to the dnsmasq may cause security issues, especially
that in case of Neutron that dhcp options' values are controlled by
cloud users.
This patch removes everything what is after first newline character
in the dhcp_extra_opt's values before passing them to dnsmasq.

Closes-Bug: #1939733
Change-Id: Ifeaf258f0b5ea86f25620ac4116d618980a7272e

2021-08-31 15:43:11 +02:00

7 lines

241 B

YAML

Raw Blame History

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 security:
   - |
     Fix `bug 1939733 <https://bugs.launchpad.net/neutron/+bug/1939733>`_ by
     dropping from the dhcp extra option values everything what is after first
     newline (``\n``) character before passing them to the dnsmasq.